A brief history of found-footage genre films
By Patrick Kevin Day, Nate Jackson, Lily Mihalik and Jevon Phillips
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'Paranormal Activity' (2009)( Paramount Pictures )
The plot: A young couple, annoyed by strange activity in their house in the middle of the night, sets up a series of cameras to capture their nocturnal visitor.
What goes bump in the night: An invisible demon.
How the footage was found: Discovered by police in the couple's home in San Diego on Oct. 11, 2006, along with the body of Micah Sloat.